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// +build linux darwin freebsd
package command
import ( "context" "fmt" "os" "os/user" "path" "runtime" "strconv" "strings" "time"
"github.com/chrislusf/seaweedfs/weed/filesys" "github.com/chrislusf/seaweedfs/weed/glog" "github.com/chrislusf/seaweedfs/weed/pb" "github.com/chrislusf/seaweedfs/weed/pb/filer_pb" "github.com/chrislusf/seaweedfs/weed/security" "github.com/chrislusf/seaweedfs/weed/util" "github.com/seaweedfs/fuse" "github.com/seaweedfs/fuse/fs" )
func runMount(cmd *Command, args []string) bool {
util.SetupProfiling(*mountCpuProfile, *mountMemProfile)
umask, umaskErr := strconv.ParseUint(*mountOptions.umaskString, 8, 64) if umaskErr != nil { fmt.Printf("can not parse umask %s", *mountOptions.umaskString) return false }
return RunMount(&mountOptions, os.FileMode(umask)) }
func RunMount(option *MountOptions, umask os.FileMode) bool {
filer := *option.filer // parse filer grpc address
filerGrpcAddress, err := pb.ParseFilerGrpcAddress(filer) if err != nil { glog.V(0).Infof("ParseFilerGrpcAddress: %v", err) return true }
// try to connect to filer, filerBucketsPath may be useful later
grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client") var cipher bool err = pb.WithGrpcFilerClient(filerGrpcAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error { resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{}) if err != nil { return fmt.Errorf("get filer grpc address %s configuration: %v", filerGrpcAddress, err) } cipher = resp.Cipher return nil }) if err != nil { glog.Infof("failed to talk to filer %s: %v", filerGrpcAddress, err) return true }
filerMountRootPath := *option.filerMountRootPath dir := *option.dir chunkSizeLimitMB := *mountOptions.chunkSizeLimitMB
util.LoadConfiguration("security", false)
fmt.Printf("This is SeaweedFS version %s %s %s\n", util.VERSION, runtime.GOOS, runtime.GOARCH) if dir == "" { fmt.Printf("Please specify the mount directory via \"-dir\"") return false } if chunkSizeLimitMB <= 0 { fmt.Printf("Please specify a reasonable buffer size.") return false }
fuse.Unmount(dir)
uid, gid := uint32(0), uint32(0)
// detect mount folder mode
mountMode := os.ModeDir | 0755 fileInfo, err := os.Stat(dir) if err == nil { mountMode = os.ModeDir | fileInfo.Mode() uid, gid = util.GetFileUidGid(fileInfo) fmt.Printf("mount point owner uid=%d gid=%d mode=%s\n", uid, gid, fileInfo.Mode()) }
if uid == 0 { if u, err := user.Current(); err == nil { if parsedId, pe := strconv.ParseUint(u.Uid, 10, 32); pe == nil { uid = uint32(parsedId) } if parsedId, pe := strconv.ParseUint(u.Gid, 10, 32); pe == nil { gid = uint32(parsedId) } fmt.Printf("current uid=%d gid=%d\n", uid, gid) } }
// Ensure target mount point availability
if isValid := checkMountPointAvailable(dir); !isValid { glog.Fatalf("Expected mount to still be active, target mount point: %s, please check!", dir) return true }
mountName := path.Base(dir)
options := []fuse.MountOption{ fuse.VolumeName(mountName), fuse.FSName(filer + ":" + filerMountRootPath), fuse.Subtype("seaweedfs"), // fuse.NoAppleDouble(), // include .DS_Store, otherwise can not delete non-empty folders
fuse.NoAppleXattr(), fuse.NoBrowse(), fuse.AutoXattr(), fuse.ExclCreate(), fuse.DaemonTimeout("3600"), fuse.AllowSUID(), fuse.DefaultPermissions(), fuse.MaxReadahead(1024 * 128), fuse.AsyncRead(), fuse.WritebackCache(), }
options = append(options, osSpecificMountOptions()...)
if *option.allowOthers { options = append(options, fuse.AllowOther()) } if *option.nonempty { options = append(options, fuse.AllowNonEmptyMount()) }
c, err := fuse.Mount(dir, options...) if err != nil { glog.V(0).Infof("mount: %v", err) return true }
defer fuse.Unmount(dir)
util.OnInterrupt(func() { fuse.Unmount(dir) c.Close() })
// find mount point
mountRoot := filerMountRootPath if mountRoot != "/" && strings.HasSuffix(mountRoot, "/") { mountRoot = mountRoot[0 : len(mountRoot)-1] }
err = fs.Serve(c, filesys.NewSeaweedFileSystem(&filesys.Option{ FilerGrpcAddress: filerGrpcAddress, GrpcDialOption: grpcDialOption, FilerMountRootPath: mountRoot, Collection: *option.collection, Replication: *option.replication, TtlSec: int32(*option.ttlSec), ChunkSizeLimit: int64(chunkSizeLimitMB) * 1024 * 1024, ChunkCacheCountLimit: *option.chunkCacheCountLimit, DataCenter: *option.dataCenter, DirListCacheLimit: *option.dirListCacheLimit, EntryCacheTtl: 3 * time.Second, MountUid: uid, MountGid: gid, MountMode: mountMode, MountCtime: fileInfo.ModTime(), MountMtime: time.Now(), Umask: umask, OutsideContainerClusterMode: *mountOptions.outsideContainerClusterMode, Cipher: cipher, }))
// check if the mount process has an error to report
<-c.Ready if err := c.MountError; err != nil { glog.V(0).Infof("mount process: %v", err) return true }
return true }
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